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  • Title: [Change in the hexokinase activity of the rat myocardial and skeletal muscle mitochondria and cytoplasm in fasting and on a carbohydrate diet].
    Author: Udintsev NA, Romanova GA.
    Journal: Ukr Biokhim Zh; 1976; 48(3):284-6. PubMed ID: 960235.
    Abstract:
    Dynamics of the hexokinase activity was stuided in mitochondria and cytoplasm of skeletal muscle and myocardium in rats which were subjected to fasting for three days and then were given a carbohydrate diet. It is established that the hexokinase activity in mitochondria (especially in the miocardium) lowers during fasting to a less extent as compared to cytoplasm and is not restored when feeding on carbohydrates, evidently, due to different quantitative ratio of isoenzymes. It is shown that hexokinase from the myocardium solubilizes more easily that from the skeletal muscles.
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